AMSOIL 5W-30 Signature Series 100% Synthetic Motor Oil

A New Level of Motor Oil Technology75% more engine protection against horsepower loss and wear.150% more cleaning power vs. AMSOIL OE Motor OilProtects turbochargers 72% better than required2 by the GM dexos1 Gen 2 specification.28% more acid-neutralizing power than Mobil 1.3Trusted by professional engine buildersGuaranteed protection for up to 25,000 miles or 1 year1Based on independent testing of AMSOIL Signature Series 0W-20 using the ASTM D6891 standard test.2Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.3Based upon independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AMSOIL Signature Series 5W-30 in ASTM D2896. Oils purchased in July 2020.